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In recent years, several studies have found that older people are less likely to develop Alzheimer’s disease and other forms of dementia if they engage in vigorous exercise, such as jogging, swimming or brisk walking.

Watching television or playing video games close to bedtime can act like a jolt of caffeine to young children, making them more likely to experience difficulty falling asleep, nightmares, and daytime fatigue, a new study in the …

Children who live with dogs and cats are less likely to develop allergies to those animals later in life, but only if the pet is under the same roof while the child is still an infant, a new study suggests.